Continental O-470-U
Service difficulty reports · 128
Newest first. General aviation reporting is voluntary.
Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE engine_model_key = 'O470U' ORDER BY difficulty_date DESC"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE engine_model_key = 'O470U' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR 2002FA0000633Float · wornAFTER A SERIES OF INTERMITTANT FUEL LEAKS FOLLOWING ENGINE SHUTDOWNS, CARBURETOR WAS REMOVED AND SUBMITTED TO REPAIR STATION (FK3R504L) FOR TROUBLESHOOTING AND/OR OVERHAUL. SHOP FOUND THE FLOAT ASSEMBLY PIVOT TAB (WHERE FLOAT IS ANCHORED WITHIN THE CARBURETORSDR AUS20020454Windshield · mismanufactured(AUS) REPLACEMENT FRONT WINDSCREEN WAS THE WRONG SIZE. THE HEIGHT OF THE SCREEN WAS TOO SHORT AND THE RT SIDE WAS NOT LONG ENOUGH. A SECOND REPLACEMENT WINDSCREEN HAD SIMILAR PROBLEMS. BOTH SCREENSWERE GENUINE MANUFACTURER SUPPLIED PARTS. MANUFACTURING ERROR.SDR 2001FA0000565Bearing · failedPILOT REPORTED RIGHT MAGNETO INOPERATIVE ON RUNUP. REMOVED RIGHT MAGNETO FOUND VERY HAD TO TURN. DISASSEMBLED MAGNETO AND FOUND DRIVE END BEARING FAILED.SDR 2001FA0000658Gasket · looseTHIS AIR FILTER ASSEMBLY HAS THE MANUFACTURING DEFECT DESCRIBED IN AD. WITH THE GASKET COMING LOOSE. FOUND IT DURING ANNUAL INSPECTION AND DISCOVERED THAT IT (BA 8110) IS NOT COVERED BY THE AD.SDR AUS20010625Clip · failed(AUS) RH RUDDER STOP T' CLIP PNO 733113-1 TO SUPPORT PNO 1231021-8 ATTACHMENT RIVETS (2OFF) PNO MS20426-AD4 SHEARED. SUSPECT CAUSED BY WIND GUSTS.SDR AUS20010571Crankcase · misoverhauled(AUS) ENGINE CRANKCASE HALVES ASSEMBLED WITH A CONSIDERABLE AMOUNT OF SEALANT BETWEEN THE MATING FACES OF THE MAIN BEARING PEDESTALS. THIS RESULTED IN CRANKCASE FRETTING AND BEARING MOVEMENT. PERSONNEL/MAINTENANCE ERROR. INCORRECT ASSEMBLY.SDR AU010333Piston Pin · faulty(AUS) DURING PRE-PURCHASE INSPECTION IT WAS FOUND THAT THE LOG BOOK ENTRY INDICATED THAT ONLY ONE NEW PISTON PIN HAD BEEN FITTED ANDTHAT THE OTHER FIVE HAD BEEN INSPECTED BY MAGNETIC PARTICLE INSPECTION AND REFITTED. AD/CON/62 AND TCM SB M87-11 REV 2STATES THASDR CA010223004Yoke · loose(CAN) CENTRAL/AILERON CONTROL: SLIGHT TWITCH OR LOOSE IN YOKE POSITION TO THE RIGHT. SLIGHT LAG IN CONTROL RESPONSE ON INITIAL ROLL INPUT. PILOT CONTROL YOKE FASTENERS AT THE CONTROL COLUMN TUBE FOUND LOOSE. BOLTS SECURED WITH LOCKTITE. AILERON CABLE TENSIONS SDR AU001087Bulkhead · cracked(AUS) LEFT AND RIGHT FORWARD DOORPOST BULKHEADS CRACKED. FOUND DURING INSPECTION IAW AD/CESSNA 180/75. (X)SDR AU001169Actuator · faulty(AUS) ELEVATOR TRIM ACTUATOR HAD EXCESSIVE PLAY IN THE SHAFT/INTERNAL SCREW COMBINATION RESULTING IN EXCESSIVE TRIM TAB FREEPLAY. THE UNIT HAD ONLY 62.2 HOURS SINCE NEW.SDR AU000991Mount · broken(AUS) RIGHT SIDE ENGINE MOUNTS BROKEN. AIRCRAFT WAS BEING HAND STARTED AND RAN AWAY FROM THE PILOT BEFORE HITTING A FENCE. THE PROPELLER HIT THE FENCE AND STALLED THE ENGINE. (X)SDR CA001018011Bearing · failed(CAN) PROPELLER PARTS CORRODED BEYOND REPAIR. BLADE BEARING RACES AND BALLS. BLADE SPLIT RETAINING RINGS. PISTON AND PISTON PINS. CYLINDER ACTUATING PINS. NOTE: THESE PARTS CORRODED AFTER 6 YEARS, NOW REGULATION IS 10 YEARS. (X)SDR CA001019003Cylinder · failed(CAN) DURING ROUTINE MAINTENANCE, A LOW DIFFERENTIAL COMPRESSION READING WAS NOTED ON THREE OF THE SIX CYLINDERS. IT WAS ALSO NOTED THE LEAKAGE WAS APPARENTLY COMING FROM THE EXHAUST VALVES ON TWO CYLINDERS AND FROM THE INTAKE VALVE ON ANOTHER. THE REMAINING SDR AU000692Bulkhead · cracked(AUS) LEFT DOORPOST BULKHEAD CRACKED. FOUND DURING INSPECTION IAW AD/C180/75. (X)SDR CA000804014Transponder · melted(CAN) AIRCRAFT HAD BEEN AT CRUISE ALTITUDE FOR ABOUT TWO HOURS WHEN A STRONG BURNING SMELL WAS NOTICED BY ALL ABOARD. AN IMMEDIATE DESCENT WAS INITIATED AND CALGARY ATC DID AN EXCELLENT JOB OF DIVERTING TRAFFIC TO ALLOW A STRAIGHT IN APPROACH. PILOT ATTEMPTESDR 20000626SH014Cylinder · wornCYLINDER NR 6 WAS REMOVED BECAUSE THE COMPRESSION WAS 50/80 DUE TO LEAKAGE PAST THE INTAKE VALVE. AFTER INSPECTION OF THE CYLINDER, THE CYLINDER ASSY WAS REPLACED DUE TO A WEAR STEP AT THE TOP OF THE CYLINDER BARREL. (X)SDR CA000606033Blade · damaged(CAN) PROPELLER RECEIVED FOR CORROSION INSPECTION. BLADES TRIMMED, ALODINED, PAINTED.SDR 20000413SH055Snap Ring · separatedINSTALLED OVERHAULED PROPELLER. FLIGHT TEST PERFORMED, ABOUT 20 MINUTES LATER, FELT SLIGHT VIBRATION. LANDED FOR CAUSE AND FOUND SNAP RING AND SHIMS OUT OF HUB ON BLADE SHANK. PROPELLER TSO: .4 HOUR. (X)SDR 20000407SH001Cylinder · wornDURING A ROUTINE COMPRESSION CHECK, THE NR 3 CYLINDER WAS FOUND TO HAVE EXCESSIVE LEAKAGE 53/80 PAST THE PISTON RINGS. THE REMOVED CYLINDER WAS FOUND WORN OUT AT THE TOP OF THE CYLINDER. (X)SDR 20000407SH002Lifter · damagedDURING THE REMOVAL OF THE NR 3 CYLINDER, THE EXHAUST VALVE LIFTER WAS INSPECTED AND FOUND TO HAVE CHIPS OF MATERIAL MISSING FROM THE CORNERS NEAR THE LOWER FACE. THE FACE OF THE LIFTER AND CAM LOBE WERE NOT FOUND TO HAVE ANY DEFECTS. (X)SDR 20000331SH023Stud · brokenNEW REBUILT ENGINE PURCHASED FROM CONTINENTAL. 10.6 HOURS AFTER INSTALLATION, NR 4 CYLINDER, NR 2 AND NR 3 CYLINDER MOUNTING STUDS BROKE. NR 5 AND NR 6 MISSING NUTS. (TORQUE WAS CHECKED ON ALL OTHER CYLINDERS AND FOUND OK). SAME ENGINE UPON INSTALLATION RSDR 20000405SH026Points · shortedAFTER UNDERGOING A 500-HOUR MANDATORY AD INSPECTION, THESE MAGNETOS WERE RETURNED TO CUSTOMER RE-INSTALLED AND TIMED TO ENGINE PER MFG SPECS. ACFT WENT THROUGH A NORMAL PRE-FLIGHT AND RUN-UP, THEN FLOWN FOR 1 HR AT NORMAL CRUISE. IN THIS LENGTH OF TIME, THE SDR 20000405SH027Points · out of toleranceAFTER UNDERGOING A 500-HOUR MANDATORY AD INSPECTION, THESE MAGNETOS WERE RETURNED TO CUSTOMER RE-INSTALLED AND TIMED TO ENGINE PER MFG SPECS. ACFT WENT THROUGH A NORMAL PRE-FLIGHT AND RUN-UP, THEN FLOWN FOR 1 HR AT NORMAL CRUISE. IN THIS LENGTH OF TIME, THE SDR 99ZZZX4680Cylinder · wornDURING A ROUTINE COMPRESSION CHECK, THE NR 3 CYLINDER WAS FOUND LEAKING EXCESSIVELY PAST THE INTAKE VALVE. THE EXHAUST VALVE AND PISTON RINGS WERE REMOVED. CYLINDER WAS FOUND TO HAVE A DEFORMED INTAKE VALVE FACE, A WORN OUT EXHAUST VALVE, AND GUIDE AND NO CHSDR 20000508SH011Cylinder · crackedTHE ENGINE WAS TOPPED WITH 6 ENGINE COMPONENTS INC CERMINIL CYLINDERS. AFTER 29 HOURS OF OPERATION, ENGINE RAN ROUGH AND WAS LOSING OIL. PILOT WAS ABLE TO FIND A PRIVATE STREET AND LANDED SAFELY. IT WAS DETERMINED THAT NR 4 CYLINDER WAS CRACKED .8750 INCH ASDR 99ZZZX4386Cylinder · wornDURING A ROUTINE 100-HOUR INSPECTION, EXCESSIVE LEAKAGE WAS FOUND GOING PAST THE PISTON RINGS ON THE NR 1 CYLINDER. THE REMOVED CYLINDER IS FOUND TO BE WORN OUT AND HAD A NEGATIVE CHOICE.SDR 99ZZZX4388Cylinder · wornDURING A ROUTINE 100-HOUR INSPECTION, EXCESSIVE LEAKAGE IS FOUND GOING PAST THE PISTON RINGS ON THE NR 6 CYLINDER. THE TOP TWO PISTON RING GAPS ARE FOUND ALIGNED AND THERE IS A NEGATIVE CHOKE IN THE CYLINDER.SDR 99ZZZX3577Valve · wornDURING A ROUTINE 100-HOUR INSPECTION, EXCESSIVE LEAKAGE WAS FOUND LEAKING PAST THE PISTON RINGS ON THE NR 4 CYLINDER. THE REMOVED CYLINDER WAS FOUND TO HAVE A WORN OUT EXHAUST VALVE, A WORN OUT VALVE GUIDE, AND WORN TO A BELL MOUTH CONDITION AT THE TOP OF THESDR 99ZZZX3591Cylinder · wornDURING A ROUTINE 100-HOUR INSPECTION, EXCESSIVE LEAKAGE WAS FOUND PAST THE PISTON RINGS ON THE NR 6 CYLINDER. THE REMOVED CYLINDER WAS FOUND WORN TO A BELL MOUTH CONDITION AT THE TOP OF THE CYLINDER BORE.SDR 99ZZZX3592Cylinder · wornDURING A ROUTINE 100-HOUR INSPECTION, EXCESSIVE LEAKAGE WAS FOUND PAST THE PISTON RINGS ON THE NR 2 CYLINDER. THE REMOVED CYLINDER WAS FOUND WORN TO A BELL MOUTH CONDITION AT THE TOP OF THE CYLINDER BORE.SDR AU990865Cylinder · leaking(AUS) ALL ENGINE CYLINDERS LEAKING BETWEEN THE BARREL AND HEAD.SDR AU990866Cylinder · misoverhauled(AUS) TWO OVERHAULED CYLINDERS WERE NOT WITHIN SERVICE LIMITS. THE CYLINDERS CONTAINED SERVICEABLE TAGS. THESE CYLINDERS WERE TO BE USED AS REPLACEMENT CYLINDERS FOR MDR 99/0865.SDR AU990769Cylinder · separated(AUS) CYLINDER HEAD SEPARATED FROM BARREL.SDR 99ZZZX2157Impulse Coupling · corrodedBOTH INMPULSE COUPLINGS ARE REJECTED DUE TO RUST ON AND AROUND THE PAWLS AND RIVETS.SDR 99ZZZX2037Impulse Coupling · corrodedIMPULSE COUPLING CORRODED ON MAGNETO.SDR 99ZZZX305Bolts · misinstalledUPON DISASSEMBLY OF C/CASE FOR PROPELLER STRIKE INSPECTION, MOST OF THE THRU-BOLT NUTS SEEMED TO BE OVERTORQUED. MAJOR EFFORT WAS NEEDED TO BREAK THEM LOOSE AND SEVERAL FELT THEY WERE TWISTING AND THEN BROKE LOOSE WITH A LOUD CRACK. SEVERAL OF THEM, WHEN ROLSDR 99ZZZX306Bolts · misinstalledUPON DISASSEMBLY OF C/CASE FOR PROPELLER STRIKE INSPECTION, MOST OF THE THRU-BOLT NUTS SEEMED TO BE OVERTORQUED. MAJOR EFFORT WAS NEEDED TO BREAK THEM LOOSE AND SEVERAL FELT THEY WERE TWISTING AND THEN BROKE LOOSE WITH A LOUD CRACK. SEVERAL OF THEM, WHEN ROLSDR 99ZZZX307Bolts · misinstalledUPON DISASSEMBLY OF C/CASE FOR PROPELLER STRIKE INSPECTION, MOST OF THE THRU-BOLT NUTS SEEMED TO BE OVERTORQUED. MAJOR EFFORT WAS NEEDED TO BREAK THEM LOOSE AND SEVERAL FELT THEY WERE TWISTING AND THEN BROKE LOOSE WITH A LOUD CRACK. SEVERAL OF THEM, WHEN ROLSDR 99ZZZX338Valve Guide · wornDURING A ROUTINE 100-HOUR INSPECTION, THE NR 4 CYLINDER WAS FOUND TO HAVE LEAKAGE PAST THE EXHAUST VALVE. FURTHER INVESTIGATION REVEALED A WORN OUT EXHAUST VALVE GUIDE. REPLACING THE GUIDE AND RE-FACING THE EXHAUST VALVE RESOLVED THE PROBLEM. SUBMITTER SUGGSDR 99ZZZX339Cylinder · wornDURING A ROUTINE 50 OIL CHANGE/COMPRESSION CHECK, THE NR 3 CYLINDER WAS FOUND TO HAVE LEAKAGE PAST THE EXHAUST AND PISTON RINGS. THE REMOVED CYLINDER WAS FOUND TO HAVE A WORN OUT EXHAUST VALVE, EXHAUST VALVE GUIDE, AND CYLINDER BARREL (NO CHOKE). THE CYLINDESDR 98ZZZX4669Impulse Coupling · failedEXCESSIVE WEAR AT ATTACH POINT. ONE PAWL OUT OF LIMITS. THE OTHER WAS JUST AT LIMITS. LEFT MAG, ONE ENGINE.SDR CA981022013Seal · missing(CAN) DURING FLT WITH PARTIAL CARB HEAT, EGT GAUGE DROPPED STEADILY TO MINS. ALL OTHER ENG PARAMETERS NORMAL AND UNCHANGED. FULL CARB HEAT APPLIED WITH MIX RICH PER POH AND CARB ICE, IMMEDIATE LOSS OF ENG POWER WITH ROUGH RUNNING AND ENG STOPPED DUE TO OVERRSDR 98ZZZX4466Oil Cooler · crackedDURING A ROUTINE INSPECTION, A CRACK WAS FOUND ON THE OIL COOLER NEAR THE AFT, LOWER SUPPORT, STRUT ATTACH POINT (WELD). SUBMITTER SUGGESTED POSSIBLE CAUSE AS IMPROPER WELDING DURING MANUFACTURE OR REMANUFACTURE.SDR 99ZZZX651Bolt · failedNR 2 MAIN JOURNAL THROUGH-BOLT WAS BROKEN AT TOP OF NR 2 CYLINDER. NO OTHER DEFECT NOTED. PILOT DID NOT STATE ABOUT ANYTHING TO CAUSE THIS, ALL OTHER ASSOCIATED ATTACH POINTS INSPECTED OK. ENGINE ONLY HAS 146.6 TSMOH AT FACTORY. PER SB 97-6, THROUGH-BOLTS SDR 98ZZZX4464Intake Valve · wornDURING AN INSPECTION REQUIRED BY TCM CSB98-1B, TITLED INTAKE AND EXHAUST VALVE INSPECTION, THE INTAKE VALVE TIPS ON THE NR'S 2, 4, AND 6 CYLINDERS WERE FOUND EXCESSIVELY WORN. SUBMITTER SUGGESTED POSSIBLE CAUSE AS DEFECTIVE PARTS INSTALLED INTO THE ENGINE AT SDR AU981175Bearing · failed(AUS) MAIN CRANKSHAFT BEARING BROKEN. CRANKCASE THROUGH BOLT P/N 641931-10-75 BROKEN. ALL CYLINDER FLANGE NUTS LOOSE. CRANKCASE MATING FACES FRETTED AND CRANKCASE CRACKED. METAL CONTAMINATION OF OIL FILTER. PART TC: 1,618.SDR 98ZZZX4456Cylinder Head · mismanufacturedDURING A ROUTINE COMPRESSION CHECK, AIR WAS FOUND LEAKING THROUGH A POROUS CASTING IN THE CYLINDER HEADS ON THE NR 2 AND NR 6 CYLINDERS. BOTH CYLINDERS WERE REPLACED. SUBMITTER SUGGESTED POSSIBLE CAUSE AS DEFECTIVE CYINDER HEADS INSTALLED ON CYLINDERS AT MANSDR CA980330017Cylinder · scratched(CAN) PROPELLER RECEIVED FOR CORROSION INSPECTION. THE CYLINDER WAS FOUND SCRATCHED AND THE BLADE PITCH LOCK DISTRIBUTION WAS FOUND OUT OF MANUFACTURERS LIMITS AS PER THE OVERHAUL MANUAL.SDR 98ZZZX4469Crankcase · crackedDURING A ROUTINE OIL CHANGE, A CRACK WAS FOUND IN THE CRANKCASE THAT RADIATES ABOUT ONE INCH TOWARDS THE CENTER OF THE ENGINE STARTING FROM THE FORWARD UPPER HOLD DOWN STUD ON THE NR 5 CYLINDER. THE ENGINE WAS RETURNED TO THE FACTORY FOR A CRANKCASE REPLACEMESDR 98ZZZX999Line · failedLEFT BRAKE FAILED ON TAKEOFF ROLL AND TAKEOFF ABORTED. FOUND SMALL HOLE WORN THROUGH ALUMINUM BRAKE LINE WHERE LINE CHAFED ON AFT SIDE OF ENTRY STEP CASTING. INSTALLED NEW 0700099-93 BRAKE LINE. SUGGEST REMOVING LANDING GEAR STRUT FAIRINGS FOR INSPECTION AT
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